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Copper(II)-Bisoxazoline Catalyzed Asymmetric 1,3-Dipolar Cycloaddition Reactions of Nitrones with Electron-Rich Alkenes

✍ Scribed by Jensen, Kim B.; Hazell, Rita G.; Jørgensen, Karl Anker

Book ID
118175096
Publisher
American Chemical Society
Year
1999
Tongue
English
Weight
309 KB
Volume
64
Category
Article
ISSN
0022-3263

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✍ Chang-Tao Qian; Long-Cheng Wang; Rui-Fang Chen 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 456 KB 👁 1 views

## Abstract 1,3‐Dipolar cycloaddition of nitrones with ethyl vinyl ether or 2,3‐dihydrofuran proceeds smoothly in the presence of a catalytic amount (10 mol%) of ytterbium triflate to afford isoxazolidines and dicyclic isoxazolidine respectively with good yields and high stereoselectivity.